Re: GPIB connection problem with EPICS 7

[Miroslaw Dach via Tech-talk <tech-talk at aps.anl.gov>]

Hi Mark, Thanks for your e-mail. It looks like the issue is with the port mapper or firewall rules. I am able to access gpib gateways from another subnet so it looks like that the connection is not EPICS 7 nor asyn related. I am sorry for the

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Hi Mark,

Thanks for your e-mail.

It looks like the issue is with the port mapper or firewall rules. 

I am able to access gpib gateways from another subnet so it looks like that the connection is not

EPICS 7 nor asyn related. I am sorry for the false alert. 

Best Regards

Mirek

On Fri, Feb 23, 2024 at 2:53 PM Mark Rivers <rivers at cars.uchicago.edu> wrote:

Hi Mirek,

 

I have been running a VXI11 device with base 7.0.7 and recent versions of asyn on Centos7 and CentOS 9 with no problems.  I am currently using the master branch (a bit beyond 4-44-2).  But I think R4-42 should work fine.

 

This is the command in my startup script:

 

vxi11Configure("serial2", "164.54.160.16", 0, 0, "gpib0", 0, 0)

 

Your error is happening because clnttcp_create is failing:

https://github.com/epics-modules/asyn/blob/a94a78987a99b1c36bbd641a67341069dc5d627e/asyn/vxi11/drvVxi11.c#L930

 

You may need to add some debugging to see why that call is failing.

 

Mark

 

 

From: Tech-talk <tech-talk-bounces at aps.anl.gov> On Behalf Of Miroslaw Dach via Tech-talk
Sent: Friday, February 23, 2024 1:32 PM
To: EPICS Tech-Talk <tech-talk at aps.anl.gov>
Subject: GPIB connection problem with EPICS 7

 

Hi All, We are migrating in ALS from Centos7 to RockyLinux8 and from EPICS 3 to EPICS 7. 0. 7 . One of our ioc which runs on Centos 7 EPICS 3. 15. 4 asyn4-30 runs fine and can access the GPIB devices via gpib gateways. The same ioc when converted

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Hi All,

 

We are migrating in ALS from Centos7 to RockyLinux8 and from EPICS 3 to EPICS 7.0.7 .

One of our ioc which runs on Centos 7 EPICS 3.15.4 asyn4-30 runs fine and can access the GPIB devices via gpib gateways.

The same ioc when converted to EPICS 7.0.7 with  asyn-R4-42 on RockyLinux 8

reports the problem as below:

 

vxi11Configure ("gpibport01","gpib01",0,0.0,"gpib0",0,0)

dbLoadRecords("db/gpibport01.db")

iocInit()
Starting iocInit
############################################################################
## EPICS R7.0.7
## Rev. 2023-04-14T11:21-0700
## Rev. Date build date/time:
############################################################################

 

2024/02/23 11:09:12.735 GPIB01_MX_ASYN: queueRequest failed

iocRun: All initialization complete

2024/02/23 11:09:22.730 GPIB01_MX_ASYN: special queueRequest timeout

2024/02/23 11:10:01.926 gpibport01 vxiConnectPort error gpib01 RPC: Port mapper failure - Timed out

 

I compiled the same code (with EPICS 7.0.7 with  asyn-R4-42) on centos7 and ran it on Centos7 and the error messages are identical.

Would that be a problem with  EPICS 7.0.7 and new asyn-R4-42 vs EPICS 3.15.4 asyn4-30 ?

 

Best Regards

Mirek